Rb-Sr, U-Pb, K-Ar Geochronologic Study of the Condrey Mountain Schist, Klamath Mountains, Northern California and Southwestern Oregon

克拉马斯山是奥陶纪的一个弧形构造区 到晚侏罗世的大洋和岛弧岩石， 在中生代板块运动期间， 收敛然而，在加积过程中的实际构造过程是 没有很好地建立。 最近的研究表明， 出露于克拉马斯山脉中北部的康尼沃山片岩 可能是方济各会建筑群向东的延续。 如果 这表明克拉马斯岩石是被 沿沿着浅断层在Franciscan Complex上方约100 km处。 这 该项目将提供地质年代学、岩石学和同位素数据， 更坚定地建立康提山-方济各会的相关性， 以便对所涉及的吸积过程进行更详细的描述。

The Klamath Mountains are an arcuate structural province of Ordovician to Late Jurassic oceanic - and island arc - affinity rocks that were accreted to the western margin of North America during Mesozoic plate convergence. However, the actual tectonic processes during accretion are not well established. Recent work has suggested that parts of the Condrey Mountain Schist exposed in the north-central Klamath Mountains may be an eastward continuation of the Franciscan Complex. If confirmed, this would indicate that the Klamath rocks have been thrust about 100 km over the Franciscan Complex along shallow faults. This project will provide geochronologic, petrologic and isotopic data to more firmly establish the Condrey Mountain - Franciscan correlation and to allow a more detailed account of the accretion processes involved.